APA
(1984). National Rubber Conference. Kottayam: Rubber Research Institute of India.
Chicago
1984. National Rubber Conference. Kottayam: Rubber Research Institute of India.
Harvard
(1984). National Rubber Conference. Kottayam: Rubber Research Institute of India.
MLA
National Rubber Conference. Kottayam: Rubber Research Institute of India. 1984.